Experimental Studies in Underwater Directional Communication
Experimental Studies in Underwater Directional Communication
复制标题
水下定向通信实验研究
DOI：
10.1121/1.1909870
复制
发表时间：
1965
影响因子：
2.4
通讯作者：
E. Torick
中科院分区：
文献类型：
--
作者：
B. Bauer;E. Torick
以前，提出了一种方案，用于通过经由交叉耦合网络连接到耳机的两个背靠背心形图案感受器接收声音来感测水下方向感知，该交叉耦合网络恢复正常的耳间延迟[J. Acoust. Soc. Am. 36，1041（A）（1964）]。为了测试该方案，进行了两个实验。(1)水下的观察者使用校准的耳机，而实验者在水面上调整交叉耦合网络的相对电压，以模拟二心受体阵列。水下的观察者感知方向的准确度与之前的空中实验相当。(2)两个微型水听器换能器安装在相距10 cm的位置，并与对称相移网络互连，以产生一个具有与两个背靠背心形换能器等效的极坐标方向图的阵列，频率范围为200-2500 cps。在这个阵列相对于水下发射器的可变方向上，并且在上面的观察者的监听下...
Previously, a scheme was suggested for sensing directional perception underwater by receiving sound with two back‐to‐back cardioid pattern receptors connected to earphones via a crosscoupling network that restores normal interaural delays [J. Acoust. Soc. Am. 36, 1041 (A) (1964)]. To test this scheme, two experiments were performed. (1) Observers under water used calibrated earphones while the experimenter topside adjusted relative voltages to the crosscoupling network to simulate the bicardioid receptor array. The observers under water sensed direction with an accuracy comparable to that obtained with previous in‐the‐air experiments. (2) Two miniature hydrophone transducers were mounted 10 cm apart and were interconnected with a symmetrical phase‐shift network to produce an array with a polar pattern equivalent to two back‐to‐back cardioid transducers, over a frequency range of 200–2500 cps. With this array in variable orientation relative to an underwater projector, and with topside observers listening ...